4.5 Article

Pregnancy maternal fetal outcomes among pregnancies complicated with atrioventricular block

期刊

BMC PREGNANCY AND CHILDBIRTH
卷 22, 期 1, 页码 -

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BMC
DOI: 10.1186/s12884-022-04650-x

关键词

Atrioventricular block; Cardiac arrhythmias; Gestation; Pacemaker

资金

  1. Academic and Technical Leader's Foundation of Sichuan Province

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Most pregnant women with AVB can have successful pregnancy and delivery. Patients with II degrees AVB and III degrees AVB should be monitored vigilantly during pregnancy and post-partum. Temporary pacing before delivery appeared to be beneficial for women with III degrees AVB, and accurate diagnosis and care by a multidisciplinary team was recommended.
Background Atrioventricular block (AVB) during pregnancy is rare. Case study for pregnancy with AVB have been reported but a consensus guideline for peripartum management has not been established. This study aimed to investigate cardiac and obstetric complications and outcomes in our pregnant women with AVB and share our management experience. Methods This was a retrospective study. We reviewed a total of 74 pregnant women with AVB who delivered at our tertiary care center in the past 10 years. The patients were categorized into four groups according to the degree of block. The data were analyzed and compared among the four groups of patients. Results Regarding the cardiac complications, the cardiac function level showed significant difference among patient groups. The higher NYHA class were observed in patients with higher degree AVB. Pacemaker was placed before delivery in 32/33 patients with III degrees AVB, 8/25 patients with II degrees AVB, and 0/16 patient with I degrees AVB. Other types of arrhythmias except AVB were present in all groups of patients but more frequently observed in type I patients with II degrees AVB. No other heart abnormalities were observed among the patient groups. Obstetric complications were found in 21 women (28.4%), including premature labor, premature rupture of membranes (PROM), gestational diabetes mellitus (GDM), preeclampsia, etc. The incidence rate of fetal cardiac abnormalities was 6.58%. But no statistical difference was detected among four groups of patients for fetal and maternal complications and fetal cardiac abnormalities (P>0.05). Caesarean section was performed more in patients with high-degree AVB than in patients with low-degree AVB. No maternal or neonatal death in our cases. Conclusions Most women with AVB could achieve successful pregnancy and delivery. Patients with II degrees AVB type II and III degrees AVB should be monitored vigilantly during pregnancy and post-partum. Temporary pacing before delivery appeared to be beneficial for women with III degrees AVB, and accurate diagnosis and care by a multidisciplinary team was recommended.

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